Asilx, A few things that come to mind: * why are you trying to build pcl_tutorials? Did you install from source (via rosinstall) or from debs? If the latter they are already built for you; * are you using the latest versions in CTurtle? On 12/19/2010 08:52 AM, asilx wrote: > > Hi, > I am getting following error when I enter 'rosmake pcl_tutorials' command: > /opt/ros/cturtle/stacks/point_cloud_perception/pcl_tutorials/src/bag_read.cpp:46: > /opt/ros/cturtle/stacks/point_cloud_perception/pcl/include/pcl/registration/transforms.h:89: > error: expected unqualified-id before \u2018&\u2019 token * I don't really understand this error. Line 89 is: 89 template inline void transformPointCloud (const pcl::PointCloud &cloud_in, pcl::PointCloud &cloud_out, const Eigen3::Affine3f &transform); Can you confirm that you have eigen3 installed on your system? What does this return?: $ roscd eigen3 && cat Makefile | grep TAR | grep build it should be: TARBALL = build/eigen3.0-beta2.tar.bz2 > I cannot figure out what the problem is. Any ideas will be appreciated :) * finally, if you're interested in PCL, check the installation instructions at http://www.ros.org/wiki/perception_pcl and http://www.ros.org/wiki/perception_pcl_addons. Because the stack in CTurtle is frozen, we are not maintaining it any more, and you wont find the latest goodies there. :) * oh also, our preferred communication media for PCL-related issues is pcl-users@code.ros.org. Thanks! Cheers, Radu. -- http://pointclouds.org